Yes. (on the Beo4) while in the room with the BL3500 (ensure that the Ouverture does not recieve any of the signals!)
1. Press list while holding power-off
2. scroll down until Beo4 displays OPTION?
3. press go
4. scroll down to A.OPT
5. press 4!
Presto. To acsess link (which you will need to press, via the LIST button, to access a source from the other B&O items) all you need to do is repeat step 1
select ADD?
scroll until you find LINK and press go.
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